diff --git a/frontend/src/components/Pages/NotFound.css b/frontend/src/components/Pages/NotFound.css
new file mode 100644
index 0000000..5ec1bea
--- /dev/null
+++ b/frontend/src/components/Pages/NotFound.css
@@ -0,0 +1,35 @@
+.notfound-container {
+  text-align: center;
+  padding: 50px;
+}
+
+.notfound-container h1 {
+  font-size: 100px;
+  color: red;
+  margin-bottom: 10px;
+}
+
+.notfound-container h2 {
+  font-size: 30px;
+  margin-bottom: 10px;
+}
+
+.notfound-container p {
+  font-size: 18px;
+  margin-bottom: 20px;
+}
+
+.back-home {
+  display: inline-block;
+  padding: 10px 20px;
+  background-color: #007BFF;
+  color: white;
+  text-decoration: none;
+  border-radius: 5px;
+  font-size: 18px;
+  transition: background 0.3s ease;
+}
+
+.back-home:hover {
+  background-color: #0056b3;
+}
\ No newline at end of file
diff --git a/frontend/src/components/Pages/NotFound.jsx b/frontend/src/components/Pages/NotFound.jsx
new file mode 100644
index 0000000..7f53c6c
--- /dev/null
+++ b/frontend/src/components/Pages/NotFound.jsx
@@ -0,0 +1,16 @@
+import React from "react";
+import { Link } from "react-router-dom";
+import "./NotFound.css"; // Style dédié
+
+const NotFound = () => {
+    return (
+        <div className="notfound-container">
+            <h1>404</h1>
+            <h2>Oups ! Page introuvable</h2>
+            <p>Il semble que la page que vous recherchez n'existe pas.</p>
+            <Link to="/" className="back-home">Retour à l'accueil</Link>
+        </div>
+    );
+};
+
+export default NotFound;
\ No newline at end of file
diff --git a/frontend/src/main.jsx b/frontend/src/main.jsx
index f2c8af7..f80e512 100644
--- a/frontend/src/main.jsx
+++ b/frontend/src/main.jsx
@@ -5,9 +5,10 @@ import { ThemeProvider } from "@mui/material/styles";
 import theme from "./theme";
 import { HelmetProvider } from "react-helmet-async";
 import SimpleReactLightbox from "simple-react-lightbox";
+import NotFound from "./components/Pages/NotFound.jsx";
 
 // Lazy loading des pages
-const Home = lazy(() => import('./components/pages/Home.jsx'));
+const Home = lazy(() => import('./components/Pages/Home.jsx'));
 const About = lazy(() => import('./components/Pages/About'));
 const Contact = lazy(() => import('./components/Pages/Contact'));
 const Post = lazy(() => import('./components/Pages/Post'));
@@ -37,6 +38,7 @@ function YourApp() {
           <Route path="/services/prestation-maitrise-oeuvre" element={<ServiceUn />} />
           <Route path="/services/formation-ia" element={<ServiceDeux />} />
           <Route path="/services/formation-video" element={<ServiceTrois />} />
+          <Route path="*" element={<NotFound />} />
         </Routes>
         <Footer />
       </Router>